//
//  BKNetworkTools.swift
//  微博
//
//  Created by mac on 16/8/10.
//  Copyright © 2016年 xbk. All rights reserved.
//

import UIKit
import AFNetworking

//网络请求的枚举类型
enum RequestType: Int{

    case GET = 0
    case POST = 1
}


//网络请求专用类
class BKNetworkTools: AFHTTPSessionManager {
    
    //闭包的别名
    typealias CalllBackType = (response:AnyObject?,error:NSError?)->()

    static let shareTools :BKNetworkTools = {
    
        let tools = BKNetworkTools()
        
        // 添加响应可接受的类型
        tools.responseSerializer.acceptableContentTypes?.insert("text/plain")
        return tools
        
    }()
    
    //封装上传图片的请求
    func requestUpload(url:String,params:AnyObject?,imageData:NSData,name:String,callBack:CalllBackType){
        
        POST(url, parameters: params, constructingBodyWithBlock: { (formData) -> Void in
            //  data 图片对应的二进制数据
            //  name 服务端需要参数
            //  fileName 图片对应名字,一般服务不会使用,因为服务端会直接根据你上传的图片随机产生一个唯一的图片名字
            //  mimeType 资源类型
            //  不确定参数类型 可以这个 octet-stream 类型, 二进制流
            formData.appendPartWithFileData(imageData, name: name, fileName: "test", mimeType: "application/octet-stream")
            
            
            
            }, progress: nil, success: { (_, reponse) -> Void in
                callBack(response: reponse, error: nil)
            }) { (_, error) -> Void in
                callBack(response: nil, error: error)
        }
        
        
    }
    
    
    //封装get/post请求
    func request(requestType:RequestType,url:String,params:AnyObject?,callBack:CalllBackType) {
        
        if requestType == .GET {
            
            GET(url, parameters: params, progress: nil, success: { (_, response) -> Void in
                
                callBack(response: response, error: nil)
                
                }, failure: { (_, error) -> Void in
                    
                    callBack(response: nil, error: error)
            })
        }else{
        
            POST(url, parameters: params, progress: nil, success: { (_, response) -> Void in
                
                callBack(response: response, error: nil)
                }, failure: { (_, error) -> Void in
                    
                    callBack(response: nil, error: error)
            })
            
        }

        
    }

}

//首页相关接口
extension BKNetworkTools{

    func requestStatuses(accessToken:String,callBack:CalllBackType){
    
        //  准备url
        let url = "https://api.weibo.com/2/statuses/friends_timeline.json"
        //  准备参数
        let params = [
            "access_token": accessToken
        ]
        
        let path = url + "?access_token=" + accessToken
        print(path)
        
        request(.GET, url: url, params: params, callBack: callBack)
    }
}

//  OAuth登录相关接口
extension BKNetworkTools{

    //通过code获取accesstoken
    func requestAccessTokenWithCode(code:String,callBack:CalllBackType){
    
        //准备url
        let url = "https://api.weibo.com/oauth2/access_token"
        
        //准备参数
        let params = [
        
            "client_id":WeiAppkey,
            "client_secret":WeiboAppSecret,
            "grant_type":"authorization_code",
            "code":code,
            "redirect_uri":weiboRedirect_Uri
        ]
        
        request(.POST, url: url, params: params, callBack: callBack)
    }
    
    //  通过accesstoken和uid获取用户信息
   func requestUserInfo(userAccount:BKUserAccount,callBack:CalllBackType) {
    
        
        let url = "https://api.weibo.com/2/users/show.json"
        
        //准备参数
        let params = [
            
            "access_token":userAccount.access_token!,
            "uid":"\(userAccount.uid)"
        ]
        request(.GET, url: url, params: params, callBack: callBack)
    }
}

//发微博的相关接口
extension BKNetworkTools{
    
    //发送图片微博的相关接口
    func upload(access_token:String,status:String,image:UIImage,callBack:CalllBackType){
    
        let url = "https://upload.api.weibo.com/2/statuses/upload.json"
        let params = [
        
            "access_token":access_token,
            "status":status
        ]
        
        //把图片转成二进制数据
        let imageData = UIImageJPEGRepresentation(image, 0.5)!
        
        requestUpload(url, params: params, imageData: imageData, name: "pic", callBack: callBack)
        
    }
    
    
    //发送文字微博的相关接口
    func updateStatus(access_token:String,status:String,callBack:CalllBackType){
    
        let url = "https://api.weibo.com/2/statuses/update.json"
        
        let params = [
        
            "access_token":access_token,
            "status":status
        ]
        request(.POST, url: url, params: params, callBack: callBack)
        
    }

    
}







